Electric switch



Patented Oct. 12, 1926.

UNITED STATES PATENT OFFICE.

CHARLES D. RYDER, OI COVINGTON, KENTUCKY, .ASSIGNOR TO THE CINCINNATIVICTOR COMPANY, A CORPORATION OF OHIO.

ELECTRIC SWITCH.

Application filed November 17, 1324.

T his invention relates to a plural way electric circuit controllinglamp socket switch primarily ior the control ot low voltage eircuits ast'or automobile lighting service, in

1 the control of a plural ordouble filament head light bulb inconjunction with a tail light bulb wherein the tail light circuit isalways complete or closed while the circuit is complete or closed toeither of the lila- 50 ments ot the head light.

The object ot my invention is to provide a switch for selective circuitcontrol said switch being ot' compact structure and having mountedtherein a removable multiple ifi contact plate.

A more specific object is to provide a lamp socltet and switch adaptedfor mounting an incandescent bulb, and for separately controlling eachot' two circuits of an incandescent light of the two-filament type, aswell as lfor simultaneously controlling the circuit ot a separatelymounted third light or a lfilurality of such lights, to cause thecircuit to the latter to be closed or opened 35i when either of thecircuits to the other two is closed or opened, whereby the third lightor circuit is operated in proper correspondence to the others.

The invention herein is applied for conf trolling circuits to thetwo-.lilament light or bulb such as is used on automobile headlights, inwhich the dimmer and bright light are combined iu a single bulb, and theseparate circuits for each lilament provided, the

:f1 terminals o'l which lilanients are connected through au improvedswitch in such manner as to control a tail light circuit, whereby thatcircuit is active or inactive in correspondence to either of the firstmentioned i circuits.

Another object is to provide a switch or contact disk oi insulatingmaterial as an intermediate connector element adapted for electricallyconnecting the terminals oit the a two-lilament incandescent lamp to apair of adjustable switch elements in such manner that the filament canbe separately energized, and an auxiliary circuit correspondinglyenergized simultaneously therewith.

Another object is to provide means for removably securing the bulb atone side of and in contact with the switch or contact disk and tofurther provide means for mounting a contact carrying plug of insulatingmaterial as a finger piece at the opposite side fil) Serial No, 750,228.

of the disk for limited step by step rotation in predetermined degreerelative to certain contacts of the disk, said plug having yieldablecontact pins adapted for simultaneously engaging the contact at thatside ot' the disk.

Other objects and certain advantages and features will be disclosed inthe description of the drawings forming apart of this specifieation, inwhich drawings:

Figure 1 is a longitudinal section showing my improved switch and lampvsocket with a lamp associated therewith.

Figure 2 is a section on line 2*-2 ot Figure l.

Figure 3 is a fragmentary elevation illustrating the manner ofconnecting the stationary and rotatable member of the device Jforrelative limited movement in pre determined degree.

Figure 4l is a section on line a-l of Figure 1, showing thenon-rotatable translatable switch or contact block in elevation.

Figure 5 is a detailed section of the block on line 5-5 of Figure 4t.

Figure 6 is an end view of the sleeve with a lamp removed.

Figure 7 is a diagrammatic view showing a scheme of electricalconnections in conjunction with my improved device.

The switch socket herein comprises three main separable parts, to wit: ametallic sleeve suitably non-rotatably mounted, ra switch block ofinsulating material -nonrotatably translatably disposed within thesleeve at an intermediate point, and a cylindrical plug also ofinsulating material rotatable in the sleeve at one end and havingyieldable insulated contacts adapted for engaging the terminals ofcertain conducting elements of the .switch block.

The sleeve or tube l has diametrically disposed longitudinally extendingbayonet slots 2 at one end into which diametrical projections 3 of thelamp base i are adapted to be inserted and the lamp rotated at the limitof insertion to engage the lugs with the lateral portion of the slots inthe usual manner. This operation disposes the bulb in position with itsterminals or contacts a, ZJ, engaged with the corresponding contacts orterminals A, B of an improved switch block 5 non-rotatably but slidablymounted within the socket, which socket is provided with an inwardlydirected longitudinal projection 7,

disposed the Contact :is a punched-in oortion .vith the i'Orres-pc:nnb`no ch C? formed in the periphery ot the 'olor non-rotatah v fdl f-`4.ited. The sleeve is stati!Y l tlv attached. iter ena nple all): et'and projecting Within a head rellector Within ant. the ilocal point ightpreferably disiosed urthei provit'ie-d at that tent r li ejht oli whichthe rEhe sleeve end opposite the ha; et slots vfith dimetricallj,Yrelated ircuniterentiel slots 10. adapted 'for limiting` the degree oitmovement ot a hendoperahle rotatahle contacty carrying plug l2 which poghas diametrically related pins projecting outwardly therelironand intohe slots. Each slot on or-x edge is curved shou'n in Figi 'e il. toprorite in this instance a central notch fl Correspending` to a neutralposition of the stv-itch and two lateral notches Q t les tliereoi o, L,at opposite sie respectiveljv correspemding` i.1 to positions for dimmerand hrigl eration.

The rotatable cylindrical plugl has ti longitndinallj: diemetrieallj;dispose-d 1)ores spaced equidis'ant at opposite sides el thevlfing'itudinal aff s of the plug, and immorahly mounted ivitfiin eachbore a condueting` tuhule` r inemher l i nstance ght op- 'ne spring` andeach has a screw, not known traversiile` he plug; and h Wall otI thetuhe aty its outer end portion to secr-.re the terminals ot a conductor.The outer preiecting` end ol the plug is threaded enteriorll.v :ind enritherewith is an efiteriorl lrnurled thumb-piece end ii er Wall oi whichis mounted a riie` 1S of insulating` material cover cap l? he ou.A

through which the 1frire conductors pees My improved multiple Contactllate or disir 5 is formed oit insuliiting' mai rml and has mountedthereon at one side in crossed relation 'Het conducting strips striphaving' two terminal e'lini angular v extending' lu tends through the ofl. 2l each al rightone or which ei.:- and projects at the opposite sidethereol"j forming the terminals A, B, and the other eisten-ffigpartiell;v through the disk as C, and therefore not projecting at theopposite side. Each conductor has the forni oil a tlat metallic strip,

im fed ceiitrelli7 at 25 the lower heilig i. l. and extended into a.central opening:r of the disk, While the ripper is erimpet centrally inineen@ the opposite direction as it 2T to brit ge the lower strip. (SeeFigures 4 and The strips are thus insulated trom one another and tworont-acts A, B, are provided at the opposite side ol" the disk, each oiwhich is engzigeahle hy corresponding' fi ament terminal ot atno-lilanient lamp, these two contacts being termed, one each atadjneently disposed ends oi the strips. The projections are ot greeterdiameter than the width oit' the strips, thus providing tour raisedcontactportions in pairs respectively E, F, at one side ot the dish undtito at the opposite side.

c "hns prosieren-having oli one tace con-'flutti -yrips oisuhstzntiallj( equal length erts;-4 suhstiintialli' eentrellr et thedist; anf-k illlalated trom e another. two neeted sets ot contacts oteach provided eael set havingtwo contacts on one side and tiu'o on theother.

Sis shown in ilifure et, the plus are in a l if i. Which hoth pins i3are i 4 pon turning the plug in a cloeluvise ireetion viewed in Fi t`,ne in contact iv 1 1 tli s siren/wil' 'finis three Lp gc lilanent X to'ine energized. .ii turned in the opposite direction sute the suiallerlilainent lt' to he nl connections are lshown in electrical enel sueh asa battery: l indic: tes e small jit tor example a tail light off :inautoinohile, or a series olI such light-s which are to he operated 'wheneither ot the fi' e if; energized; and I indicates an ight provided witht ie .mel l- "elf," Tt am,

ot nnents is if' rile the haii al i "l licitterv is azonneged with i.lie contact pin= lll and the other conv ywniiiemetl.

the

vith one terminal ot other terminal.. heilig Yfhen the ploein right andengaged with the l rrent from the hatterj; passes Ao the lare-e filamentoli the lamp l to the smell lamp J. ll'liei ated in the opposite a thelamp ,l.

i .i lila nent enel ized :is well Thus the swi ch controls threecircuits in such manner 'hat two ot the circuits can he alternatelyv andseparately opeated and the simultaneousl)v operated in corre spondenceto either.

llthoueh the invention has been shown and descrihed as applied toautoniolzile lighting. i'Y obvious that the switch and ted h v neturo.

The structure of the rotatable plug may be modified providing that theproper number and arrangement oit contact pins are provided to establishthe circuit. Moreover, the incandescent lamp can be ot' any preferredconstruction and may be attached to `the sleeve in any other preferredmanner.

It desirable a terminal plug may be substituted thereior. Other meanscan also be provided for securing the contact disk in proper positionwithin the sleeve.

Having described my invention, I claim:

l.. A rotary switch for controlling two selective and one simultaneouscircuit, comprising a hollow member having yselective circuit terminalsmounted non-rotatively in one oud thereof, battery and simultaneouscircuit terminals mounted rotatively in the other end thereof and havinginterposed between said terminals a non-rotatable multiple Contact plateproi'f'iding two battery circuit contacts insulated from each other,each battery circuit contact having connected therewith a simultaneouscircuit contact on the same side of the disc and a lectivo circuitcontact on the opposite Iside ot the dise.

A switch comprising two sets of contacts, said sets rotatably andengageably inouiited with respect to each other, the first set beingprovided with rtwo contacts and the second set with four contactsconnected in pairs and so disposed that by rotation of one set, bothcontacts of the lirst set are adapted to be engaged selectively by bothcontacts ot either connected pair oit contacts oil the second set.

A contact disk of insulating material having crossed conducting elementson one tace insulated from one another, one end oi1 each strip extendedthrough and projected lzeyond the d at the opposite ll. A eoiitae diskof insulating material haring cro ed Iconducting elements on one tace inw-lctcd lloin one another, one end oil each strip extended through thedisk and hoyoml the man e lface thereot, whereby each strip at one sideis adapted for simultaneous engagement by pairs olf diametri callyarranged contact elements and whereby each strip can be engaged by andelectrically connected with a'terminal conductor at the opposite side.

5. A contact `disk of insulating` material having crossed conductingstrips on one tace, insulated trom one another. each strip having onetern'iinal extended through the disk to provide. circularly adjacentcontacts iduidistant lron'i the dish center.

(i. A contact disk of insulating material having crossed conductingstrips on one tace, ol equal length, crossing substantiallyv centrallythereof and ot one another and insulated Vfrom one another, each striphaving one terminal extending through the disk to provide two circularlyadjacent contacts equidistantlj. spaced from `the disk center.

A Contact disk ot insulating material having crossed conducting stripson o e :tace ot equal length crossing substantially centrally thereoland insulated from one another. each strip having one terminal. el;htended through the disl to provide two substantially adjacent contactsequidistant trom the dislr center, whereby each terminal of atwo-iilament lamp can be ein gaged by and electrically 'connected to oneterminal oi a strip at one side ot the dish, and whereby each strip atthe opposite side is adapted for simultaneous engagement o 'v pairs ofinsulated diametrically arrangec contact elements.

8. In a'device of the class described, a tubular conducting ele-nient asa socket having an inwardly directed projection, and a disk ofinsulating material slidable Within said tube having a periphe al notchslidably engaged with said projection tor preventing disk rotation, saiddisk having crossed conducting elements on one face insulated from oneanother, one end of each strip extended through and projecting beyondthe disk at the opposite side, whereby electrical elements are adaptedto be supported at opposite sides of the disk and electrically connectedthrough the disk contacts.

9. A lamp socket and switch comprising a tubular conducting element, aplug of insulating material rotatably non-translatA ably mounted at oneend of the tube, rotatably adjustable in limited degree, having twoyieldable conducting elements project ing inwardly therefrom, a disk otinsulating material mounted within the tube having crossed conductingelements on one face adapted tor separate and simultaneous engagement bythe two yieldable conducting elements, each cross element one endextending through and projecting beyond the disk at the oppositeside toprovide two contacts for engagement with respective terininals of a twolilament incandescent lamp, said tubular element having means forholding the lamp against the contacts.

10. A lamp socket and switch comprising a tubular conducting element, alinger piece as a plug ot insulating material, rotatably nontranslatablymounted at one end of' the tube rotatably adjustable in limited degreehaving two yieldable conducting elements projecting inwardly therefrom,a disk ot insulating material mounted within the tube having crossedconducting elements on one face adapted for separate and simultaneousengagement by the two yieldable conducting elements, each cross elementat one end extending through and projecting beyond the disk at theopposite side to provide two contacts for engagement with respectiveterminals of a two-filament incandescent lamp,

said tubular element having means for holding the lamp against thecontacts.

ll. A lamp socket and switch comprising a tuhularconducting elementhaving means for securing an incandescent light bulb therein at one endand having an limvardly directed projection at an intermediate point,and Yfurther having diametrically disposed circumferential slots at theopposite end with that circumferential Wall of each slot adjacent theend notched to torni stop de-I pressions, a plug 'of insulating materialrotatable Within the tubular conducting element having projectionsengaged with said circumferential slots and depressions tor lin'iitingrotation thereof'in preeetermincd degree, said plug having yieldahledialnet rically related contacting elements projecting inwardlytherefrom, and a contact dish` of insulating material having a notchslidahly engaged u'ith the projection of the tu.- hular element, andfurther having crossed conducting strips on one face insulated from oneanother. each strip having one terminal extending through the disk toprovide tvfo contacts at the element receiving end of the tubulaielementwhereby each terminal of a tno-lilament lamp can he electricallj7connected to the corresponding terminal of the corresponding strip atone side of the dish. and u'herehy each strip at the opposite side isadapted for separate engagement by the diainetricalljT related contactelements of the `plug when the same is rotated.

l2. 2i lamp soclret and switch comprising a tubular conducting` elementhaving means at one end tor securing an incandescent ht bullo therein,and having an inwardly directed projection at an intermediate point, aplug ot insulating' material rotatably nontranslatahly secured Withinsaid tubular conducling element t'or limited rotation, sai d plug havingyieldable diametrically related Contact elements, and a contact dish ot'insulating material having a notch slidhly engaged With the projectionof said tuhular element and having crossed conducting strips on one iaceinsulated from one another7 each strip having one terminal extendingthrough the disk to provide two contacts at the lamp receiving end olthe tubular element. Wherehy each strip at one side of the disk adapted:tor separate si` inultaneous engagement hy the diametri-- cally relatedcontact element oit the pltnff when the same is rotated.

18. A lamp socket and switch conun'ising a tubular conductingclementhaving diametrically disposed longitudin:v lv extend ing bayonetslots at one end ioi securing an incandescent light hull) therein. andhaving an inwardly directed projection at an intermediate point andfurther having diainetrically disposed circuniierential slots at itsopposite end, a finger piece as a plug oit insulating material rotatahleWithin said tubular conducting element7 having projet tions eng .gedwith said circumferential slots for limiting rotation thereof. said plugha ring yielding diametrically related contact elements projectinginwardly therefrom, and a contact disk of insulating material ha ing anotch slidahly engaged with said projection of the conducting elementand having crossed conducting strips on one i'ace insulated from oneanother. each strip ha *ing one terminal extending through the disl toprovide ttvo contacts at tie lamp receiving end of the tubular element.Wherehy each terminal ot' a tivo-filament lamp can he electricallyconnected to one terminal oi a strip at one side of the disk, wherebyeach strip at the opposite side is adan'ed for simultaneous engagementhy the ciametrically related contact elements ot the plug When the sameis rotated. and means for electrically connecting each yieldahle contactelement in a circuit.

In Witness whereof, I hereunto suhscrdm my name,

CHARLES D. RYDER,

